Start with your light with the basic reflector and no umbrella, set low (maybe a little higher than the camera--but experiment with the height, because it might depend on the subject), about 90-degrees to the right or left of the camera axis. If the effect is too strong, you can try a diffuser over the light, the umbrella for even more diffusion, and a reflector card opposite the light to decrease the contrast ratio even further. For an even harder look, use a grid over the light.